For the STroke Imaging Research (STIR) and VISTA-Imaging Investigators The purpose of this study was to collect precise information on the typical imaging decisions given specific clinical acute stroke scenarios. Stroke centers worldwide were surveyed regarding typical imaging used to work up representative acute stroke patients, make treatment decisions, and willingness to enroll in clinical trials.STroke Imaging Research and Virtual International Stroke Trials Archive-Imaging circulated an online survey of clinical case vignettes through its website, the websites of national professional societies from multiple countries as well as through email distribution lists from STroke Imaging Research and participating societies. Survey responders were asked to select the typical imaging work-up for each clinical vignette presented. Actual images were not presented to the survey responders. Instead, the survey then displayed several types of imaging findings offered by the imaging strategy, and the responders selected the appropriate therapy and whether to enroll into a clinical trial considering time from onset, clinical presentation, and imaging findings. A follow-up survey focusing on 6 h from onset was conducted after the release of the positive endovascular trials.We received 548 responses from 35 countries including 282 individual centers; 78

作者：Marie, Luby；Steven J, Warach；Gregory W, Albers；Jean-Claude, Baron；Christophe, Cognard；Antoni, Dávalos；Geoffrey A, Donnan；Jochen B, Fiebach；Jens, Fiehler；Werner, Hacke；Maarten G, Lansberg；David S, Liebeskind；Heinrich P, Mattle；Catherine, Oppenheim；Peter D, Schellinger；Joanna M, Wardlaw；Max, Wintermark

来源：International journal of stroke : official journal of the International Stroke Society 2016 年 11卷 2期